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Solvent-triggered single-crystal-to-single-crystal transformation from a monomeric to polymeric copper(II) complex based on an aza macrocyclic ligand.
Acta Crystallographica Section B ( IF 1.3 ) Pub Date : 2020-03-19 , DOI: 10.1107/s2052520620002371
Jong Won Shin 1 , Ah Rim Jeong 2 , Younghak Kim 3 , Dae Woong Kim 4 , Sang Geul Lee 2 , Hyosun Lee 5 , Dohyun Moon 4
Affiliation  

Reversible solvent‐triggered single‐crystal‐to‐single‐crystal (SCSC) transformations are observed between two copper(II) azamacrocyclic complexes: [Cu(C16H38N6)(H2O)2](C12H6O4) (1) and [Cu(C16H38N6)(C12H6O4)] (2). Complex (1) was prepared via self‐assembly of a copper(II) azamacrocyclic complex containing butyl pendant groups, [Cu(C16H38N6)(ClO4)2], with 2,7‐naphthalenedicarboxylic acid. When monomeric compound (1) was immersed in CH3OH, coordination polymer (2) was obtained, indicating a solvent‐triggered SCSC transformation. Furthermore, when (2) was immersed in water, an reverse SCSC transformation from (2) to (1) occurred. Complex (1) presents a 3D supramolecular structure formed via intermolecular hydrogen‐bonding interactions, whereas complex (2) features a 1D zigzag coordination polymer. The reversible SCSC transformation of (1) and (2) was characterized using single‐crystal X‐ray diffraction and in situ powder X‐ray diffraction techniques. Despite its poor porosity, complex (2) displayed interesting CO2 adsorption behaviour under CO2 gas.

中文翻译:

基于氮杂大环配体的溶剂触发的单晶至单晶从单体到聚合铜(II)配合物的转变。

在两个铜(II)氮杂大环配合物:[Cu(C 16 H 38 N 6)(H 2 O)2 ](C 12 H 6)之间观察到可逆的溶剂触发单晶至单晶(SCSC)转变O 4)(1)和[Cu(C 16 H 38 N 6)(C 12 H 6 O 4)](2)。配合物(1)通过含有丁基侧基[Cu(C 16 H 38 N 6)(ClO 42的铜(II)氮杂大环配合物的自组装制备。],2,7-萘二甲酸。将单体化合物(1)浸入CH 3 OH后,得到配位聚合物(2),表明溶剂触发了SCSC的转变。此外,当将(2)浸入水中时,发生了从(2)到(1)的反向SCSC转变。配合物(1)呈现通过分子间氢键相互作用形成的3D超分子结构,而配合物(2)具有1D锯齿形配位聚合物。使用单晶X射线衍射和原位粉末X射线衍射技术对(1)和(2)的可逆SCSC转变进行了表征。尽管其孔隙率差,但配合物(2)在CO 2气体下仍表现出有趣的CO 2吸附行为。
更新日期:2020-03-19
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